问题:单选题Given: 12. System.out.format("Pi is approximately %d.", Math.PI); What is the result?()A An exception is thrown at runtime.B Pi is approximately 3.C Pi is approximately 3.141593.D Compilation fails....
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问题:单选题Given: What is the result?()A If you define D e = new E(), then e.bMethod() invokes the version of bMethod() defined in Line 5.B If you define D e = (D)(new E()), then e.bMethod() invokes the version of bMethod() defined in Line 5.C Compilation...
问题:单选题Given: What is the result?()A AB BC CD DE E...
问题:单选题Given: What is the result of calling search with a valid List implementation? ()A 0B The result is undefined.C aD 2E 1F cG b...
问题:单选题Click the Exhibit button. Given: ClassA a = new ClassA(); a.methodA(); What is the result?()A The code runs with no output.B Compilation fails.C An exception is thrown at runtime.D ClassC is displayed....
问题:多选题Click the Exhibit button. Given: Which two statements are true if a NullPointerException is thrown on line 3 of class C?()AThe application will crash.BThe code on line 29 will be executed.CThe code on line 5 of class A will execute.DThe exception wil...
问题:多选题Which two code fragments correctly create and initialize a static array of int elements?()AABBCCDD...
问题:单选题Given the command line java Pass2 and: What is the result? ()A doStuff x = 6 main x = 6B Compilation fails.C doStuff x = 6 main x = 7D An exception is thrown at runtime.E doStuff x = 7 main x = 6F doStuff x = 7 main x = 7...
问题:单选题Click the Exhibit button. Given this code from Class B: 25. A a1 = new A(); 26. A a2 = new A(); 27. A a3 = new A(); 28. System.out.println(A.getInstanceCount()); What is the result?()A Compilation of class A fails.B Line 28 prints the v...
问题:多选题Given: Which five methods, inserted independently at line 5, will compile?()Aprotected int blipvert(long x) { return 0; }Bprotected long blipvert(int x) { return 0; }Cprivate int blipvert(long x) { return 0; }Dprivate int blipvert(int x) { return 0; }E...
问题:多选题Given: 11. // insert code here 12. private N min, max; 13. public N getMin() { return min; } 14. public N getMax() { return max; } 15. public void add(N added) { 16. if (min == null || added.doubleValue() max.doubleValue()) 19. max = adde...
问题:多选题A JavaBeans component has the following field: 11. private boolean enabled; Which two pairs of method declarations follow the JavaBeans standard for accessing this field?()AABBCCDD...
问题:多选题Given: 10. class One { 11. void foo() { } 12. } 13. class Two extends One { 14. //insert method here 15. } Which three methods, inserted individually at line 14, will correctly complete class Two?()Apublic void foo() { /* more code here *...
问题:多选题Given: 10. interface Jumper { public void jump(); } ... 20. class Animal {} ... 30. class Dog extends Animal { 31. Tail tail; 32. } ... 40. class Beagle extends Dog implements Jumper{ 41. public void jump() {} 42. } ... 50. class Cat...
问题:单选题Given: 11. String test = "This is a test"; 12. String[] tokens = test.split("/s"); 13. System.out.println(tokens.length); What is the result?()A An exception is thrown at runtime.B 1C 4D Compilation fails.E 0...